The dramatic run-up -- and then down -- of Bitcoin and other cryptocurrencies offers an illustration of how dramatically bubbles can inflate -- and then pop. This article considers the cryptocurrency rise and fall, historical market bubbles, and ways to identify a bubble in the making.

After stewing on it for several years, Tim Hockey, CEO of TD Ameritrade, boldly announced that the firm would not compete directly with RIAs for high net worth clients at the recently held TDA LINC conference in San Diego, CA.